gecko-dev/ipc/glue/InProcessParent.h
Alex Gaynor 984f0333ea Bug 1512990 - Part 3 - remove declarations of Alloc/Dealloc methods from IPDL protocol base class; r=froydnj
For cases where the class has direct calls (that is, we cast `this` to the
subclass before making the call) no longer declare Alloc/Dealloc methods on the
base class at all. This should ensure that slots for them are not generated in
vtables, and also allow the derived class to choose the method signature (e.g.
whether it wants to take something by reference or by value).

Differential Revision: https://phabricator.services.mozilla.com/D18131

--HG--
extra : moz-landing-system : lando
2019-02-06 15:58:07 +00:00

74 lines
2.2 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_ipc_InProcessParent_h
#define mozilla_ipc_InProcessParent_h
#include "mozilla/ipc/PInProcessParent.h"
#include "mozilla/StaticPtr.h"
namespace mozilla {
namespace dom {
class PWindowGlobalParent;
class PWindowGlobalChild;
} // namespace dom
namespace ipc {
class InProcessChild;
/**
* The `InProcessParent` class represents the parent half of a main-thread to
* main-thread actor.
*
* The `PInProcess` actor should be used as an alternate manager to `PContent`
* for async actors which want to communicate uniformly between Content->Chrome
* and Chrome->Chrome situations.
*/
class InProcessParent : public nsIObserver, public PInProcessParent {
public:
friend class InProcessChild;
friend class PInProcessParent;
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
// Get the singleton instance of this actor.
static InProcessParent* Singleton();
// Get the child side of the in-process child actor |aActor|. If |aActor| is
// not an in-process actor, or is not connected, this method will return
// |nullptr|.
static IProtocol* ChildActorFor(IProtocol* aActor);
protected:
mozilla::dom::PWindowGlobalParent* AllocPWindowGlobalParent(
const WindowGlobalInit& aInit);
bool DeallocPWindowGlobalParent(mozilla::dom::PWindowGlobalParent* aActor);
virtual IPCResult RecvPWindowGlobalConstructor(
mozilla::dom::PWindowGlobalParent* aActor,
const WindowGlobalInit& aInit) override;
private:
// Lifecycle management is implemented in InProcessImpl.cpp
virtual void ActorDestroy(ActorDestroyReason aWhy) override;
virtual void DeallocPInProcessParent() override;
~InProcessParent() = default;
static void Startup();
static void Shutdown();
static StaticRefPtr<InProcessParent> sSingleton;
static bool sShutdown;
};
} // namespace ipc
} // namespace mozilla
#endif // defined(mozilla_ipc_InProcessParent_h)